I've seen one of those Mopar clones installed on a LTD. here in B.C.
and they look totally cheap!
This is what I am doing for roof mounted off road lighting.
I permanently mounted an additional pair of Thule 400 series foot kit and
roof bars to the front of the roof with nut serts and stainless steel hardware.
(Along with a Thule wind deflector I had.)
To this I am going to mount four lamps out of my collection of lamps!
As well as a wired remote search light in the middle